wl1271: Fix warning about unsupported RX rate

While scanning, it is possible that beacon and probe response frames are
received on other band than configured to the driver. In rx status
handling this has caused "Unsupported RX rate from HW" warnings. This
patch changes the wl1271_rate_to_index function to take the band of the
received frame as a parameter instead of using value configuret to
wl->band.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>

5 files changed, 15 insertions, 7 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 532ccd01cf6..63036b53f9e 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -2367,18 +2367,18 @@ static const struct ieee80211_ops wl1271_ops = {
 };
 
 
-u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate)
+u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
 {
 	u8 idx;
 
-	BUG_ON(wl->band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
+	BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
 
 	if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
 		wl1271_error("Illegal RX rate from HW: %d", rate);
 		return 0;
 	}
 
-	idx = wl1271_band_rate_to_idx[wl->band][rate];
+	idx = wl1271_band_rate_to_idx[band][rate];
 	if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
 		wl1271_error("Unsupported RX rate from HW: %d", rate);
 		return 0;
diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.c b/drivers/net/wireless/wl12xx/wl1271_rx.c
index ac13f7d2521..35448e7c0dd 100644
--- a/drivers/net/wireless/wl12xx/wl1271_rx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_rx.c
@@ -48,10 +48,18 @@ static void wl1271_rx_status(struct wl1271 *wl,
 			     struct ieee80211_rx_status *status,
 			     u8 beacon)
 {
+	enum ieee80211_band desc_band;
+
 	memset(status, 0, sizeof(struct ieee80211_rx_status));
 
 	status->band = wl->band;
-	status->rate_idx = wl1271_rate_to_idx(wl, desc->rate);
+
+	if ((desc->flags & WL1271_RX_DESC_BAND_MASK) == WL1271_RX_DESC_BAND_BG)
+		desc_band = IEEE80211_BAND_2GHZ;
+	else
+		desc_band = IEEE80211_BAND_5GHZ;
+
+	status->rate_idx = wl1271_rate_to_idx(desc->rate, desc_band);
 
 #ifdef CONFIG_WL1271_HT
 	/* 11n support */
diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.h b/drivers/net/wireless/wl12xx/wl1271_rx.h
index 13a232333b1..6d41981ce53 100644
--- a/drivers/net/wireless/wl12xx/wl1271_rx.h
+++ b/drivers/net/wireless/wl12xx/wl1271_rx.h
@@ -116,6 +116,6 @@ struct wl1271_rx_descriptor {
 } __packed;
 
 void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_status *status);
-u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate);
+u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band);
 
 #endif
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index 87a5aed00c8..46fafe08f81 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -350,7 +350,7 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
 	if (result->status == TX_SUCCESS) {
 		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
 			info->flags |= IEEE80211_TX_STAT_ACK;
-		rate = wl1271_rate_to_idx(wl, result->rate_class_index);
+		rate = wl1271_rate_to_idx(result->rate_class_index, wl->band);
 		retries = result->ack_failures;
 	} else if (result->status == TX_RETRY_EXCEEDED) {
 		wl->stats.excessive_retries++;
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.h b/drivers/net/wireless/wl12xx/wl1271_tx.h
index f1c906519b7..9dc6f228c0d 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.h
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.h
@@ -144,7 +144,7 @@ void wl1271_tx_work_locked(struct wl1271 *wl);
 void wl1271_tx_complete(struct wl1271 *wl);
 void wl1271_tx_reset(struct wl1271 *wl);
 void wl1271_tx_flush(struct wl1271 *wl);
-u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate);
+u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band);
 u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set);
 
 #endif